rm Definition

ream¹
noun

1. printing.
A number of sheets of paper equivalent to 20 quires, formerly 480 (a short ream), now usually 500 (a long ream) or 516 (a printer's ream).
2. colloq
A large quantity, especially of paper or writing.
Example: wrote reams
Form: reams

Etymology: 14c: from French reame, from Arabic rizmah bale.

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RM
abbreviation

1. IVR.
Republic of Madagascar.
2. Resident Magistrate.
3. Royal Mail.
4. Royal Marines.

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rm
abbreviation

1. printing.
Ream.
2. Room.